52731407 has 4 divisors (see below), whose sum is σ = 52870920. Its totient is φ = 52591896.

The previous prime is 52731397. The next prime is 52731409. The reversal of 52731407 is 70413725.

52731407 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52731407 - 2⁴ = 52731391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52731407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52731409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69188 + ... + 69945.

It is an arithmetic number, because the mean of its divisors is an integer number (13217730).

Almost surely, 2^52731407 is an apocalyptic number.

52731407 is a deficient number, since it is larger than the sum of its proper divisors (139513).

52731407 is a wasteful number, since it uses less digits than its factorization.

52731407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139512.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 52731407 is about 7261.6394154488. The cubic root of 52731407 is about 374.9929646088.

The spelling of 52731407 in words is "fifty-two million, seven hundred thirty-one thousand, four hundred seven".